The Northern Ireland Police Ombudsman is extending its inquiry into the PSNI investigation that led to last month's acquittal of Sean Hoey of involvement in the Omagh bombing.
Mr Hoey (38) of Molly Road, Jonesborough, Co Armagh was cleared of all charges relating to other dissident republican attacks and the 1998 bombing in Co Tyrone in which 29 people and two unborn babies died.
Counsel for Mr Hoey claimed during the 56-day trial that police had tampered with evidence, including witness statements, and conspired to bury evidence.
Trial judge Mr Justice Weir said in his summation that two officers - Det Chief Insp Philip Marshall and Constable Fiona Cooper - had lied to "beef up" their case.
They had been involved in collecting evidence at the scene of a dissident republican bomb found in Altmore Forest, Co Tyrone, in 2001. Mr Hoey had been accused of being involved.
Neither officer was suspended, and it was confirmed today that one had been moved to new duties on Police Ombudsman Al Hutchinson's recommendation.
"I have advised the Director of Public Prosecutions that my investigators are now looking at the wider issues which have been raised," Mr Hutchinson said.
He noted that Mr Justice Weir had referred to a "deliberate and calculated deception in which others concerned in the investigation and preparation of the case for trial" may have played a part.
The Northern Ireland Policing Board announced two weeks ago that it is to commission an independent review of all the investigations into the bombing.
And chairman Sir Desmond Rea today said the board wanted meet Omagh families before determining its terms of reference.